@conference {Cocchioni2014374,
	title = {Unmanned ground and aerial vehicles in extended range indoor and outdoor missions},
	booktitle = {2014 International Conference on Unmanned Aircraft Systems, ICUAS 2014 - Conference Proceedings},
	year = {2014},
	note = {cited By 1},
	pages = {374-382},
	abstract = {The capability to instantiate a cooperation among heterogeneous agents is a fundamental feature in mobile robotics. In this paper we focus on the interaction between Unmanned Ground Vehicle (UGV) and Unmanned Aerial Vehicle (UAV) to extend the endurance of UAV, thanks to a novel landing/recharging platform. The UGV acts as a docking station and hosts the UAV during the indoor/outdoor transition and vice-versa. We designed a platform and a robust landing target to automate the fast recharge of UAV. The synchronization and coordination of cooperation is managed by a Ground Control Station (GCS) developed using a versatile software toolchain based on the integration of Stateflow, auto-generation of C-code and ROS. All the software components of UAV, UGV and GCS have been developed using ROS. The obtained results show that the UAV is able to land over the UGV with high accuracy (<5cm for both x and y axis) thanks to a visual position estimation algorithm, also in presence of wind (with gust up to 20-25km/h), recharging its batteries in a short time to extend its endurance. {\textcopyright} 2014 IEEE.},
	doi = {10.1109/ICUAS.2014.6842276},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84904582437\&partnerID=40\&md5=f57cb12575d6f9ff24ff152e95b48c80},
	author = {Francesco Cocchioni and Pierfelice, V. and Benini, A. and Adriano Mancini and Emanuele Frontoni and Primo Zingaretti and Ippoliti, G. and Sauro Longhi}
}
@conference {Frontoni20111047,
	title = {UAVS safe landing using range images},
	booktitle = {Proceedings of the ASME Design Engineering Technical Conference},
	volume = {3},
	number = {PARTS A AND B},
	year = {2011},
	note = {cited By 0},
	pages = {1047-1052},
	abstract = {In this paper a mixed vision-range based approach, based on Kinect technology, for safe landing of an Unmanned Aerial Vehicle (UAV) is proposed. The guidance system allows a remote user to define target areas from an high resolution aerial or satellite image to determine the waypoints of the navigation trajectory or the landing area. The system is based on our previous work on UAV navigation and landing: a feature-based image matching algorithms finds the natural landmarks and gives feedbacks to the control system for autonomous navigation and landing. An algorithm for safe landing areas detection is proposed, based on the use of 4D RGBD (Red, Green, Blue, Distance) image analysis. The helicopter is required to navigate from an initial to a final position in a partially known environment, to locate a landing area and to land on it. Results show the appropriateness of the vision-based approach that does not require any artificial landmark (e.g., helipad) and is quite robust to occlusions, light variations and high vibrations. {\textcopyright} 2011 by ASME.},
	doi = {10.1115/DETC2011-49012},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84863583459\&partnerID=40\&md5=4a39fb31b9b944e81de89b9c26185af7},
	author = {Emanuele Frontoni and Adriano Mancini and Primo Zingaretti}
}
